Home / 2,878.90-4,318.62-1,235.14

Finding the Fourth Proportional to 2,878.90, 4,318.62 and 1,235.14

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Solution

The fourth proportional to 2,878.90, 4,318.62 and 1,235.14 is: 1,852.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,878.90 : 4,318.62 = 1,235.14 : x
  2. Step 2: Convert to fraction form
    2,878.90/4,318.62 = 1,235.14/x
  3. Step 3: Cross multiply
    2,878.90x = 4,318.62 × 1,235.14
  4. Step 4: Simplify right side
    2,878.90x = 5,334,100.31
  5. Step 5: Solve for x
    x = 5,334,100.31/2,878.90
  6. Step 6: Final answer
    x = 1,852.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.